public class Example3_7 {
	public static void main(String args[]) {
		int sum=0,i,j;
		for (i=1; i<=10; i++) {
			if(i%2==0) {
				continue;
			}
			sum=sum+i;
		}
		System.out.println("sum="+sum);
		for(j=2; j<=100; j++) {
			for (i=2; i<=j/2; i++) {
				if(j%i==0)
					break;
			}
			if(i>j/2) {
				System.out.println(""+j+"是素数");
			}
		}
	}
}
